<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>修改</h1>
<form action="/update">
    <input name="id">
    <input name="title">
    <input name="price">
    <input name="num">
    <input type="submit" value="添加">
</form>
</body>
</html>